SKYSAT-C2 is one of the four SkySat aerial imaging platforms owned by Terra Bella, a subsidiary of Google headquartered in Mountain View, California, launched on 16 Sep 2016. Terra Bella has informally named the satellites deployed after Star Wars characters: R2D2, Luke, C3PO and Leia. Each SkySat platform, weighing 242 pounds (110 kilograms), is about the size of a dorm room refrigerator and can capture imagery of objects smaller than 3 feet—about 90 centimeters—and record high-resolution video, a unique capability in the commercial Earth observation market. The SkySat satellites carry a Swedish-developed propulsion system fueled by environmentally-friendly 'green' propellant. The thruster package burns an ammonium dinitramide (ADN) based liquid propellant, replacing the toxic hydrazine more commonly flown on satellites.